nac3/nac3core/src/toplevel/builtins.rs

748 lines
33 KiB
Rust

use super::*;
use crate::{
codegen::{expr::destructure_range, irrt::calculate_len_for_slice_range, stmt::exn_constructor},
symbol_resolver::SymbolValue,
};
use inkwell::{FloatPredicate, IntPredicate};
type BuiltinInfo = (
Vec<(Arc<RwLock<TopLevelDef>>, Option<Stmt>)>,
&'static [&'static str]
);
pub fn get_builtins(primitives: &mut (PrimitiveStore, Unifier)) -> BuiltinInfo {
let int32 = primitives.0.int32;
let int64 = primitives.0.int64;
let float = primitives.0.float;
let boolean = primitives.0.bool;
let range = primitives.0.range;
let string = primitives.0.str;
let num_ty = primitives.1.get_fresh_var_with_range(&[int32, int64, float, boolean], Some("N".into()), None);
let var_map: HashMap<_, _> = vec![(num_ty.1, num_ty.0)].into_iter().collect();
let exception_fields = vec![
("__name__".into(), int32, true),
("__file__".into(), string, true),
("__line__".into(), int32, true),
("__col__".into(), int32, true),
("__func__".into(), string, true),
("__message__".into(), string, true),
("__param0__".into(), int64, true),
("__param1__".into(), int64, true),
("__param2__".into(), int64, true),
];
let div_by_zero = primitives.1.add_ty(TypeEnum::TObj {
obj_id: DefinitionId(10),
fields: exception_fields.iter().map(|(a, b, c)| (*a, (*b, *c))).collect(),
params: Default::default()
});
let index_error = primitives.1.add_ty(TypeEnum::TObj {
obj_id: DefinitionId(11),
fields: exception_fields.iter().map(|(a, b, c)| (*a, (*b, *c))).collect(),
params: Default::default()
});
let exn_cons_args = vec![
FuncArg { name: "msg".into(), ty: string,
default_value: Some(SymbolValue::Str("".into()))},
FuncArg { name: "param0".into(), ty: int64,
default_value: Some(SymbolValue::I64(0))},
FuncArg { name: "param1".into(), ty: int64,
default_value: Some(SymbolValue::I64(0))},
FuncArg { name: "param2".into(), ty: int64,
default_value: Some(SymbolValue::I64(0))},
];
let div_by_zero_signature = primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: exn_cons_args.clone(),
ret: div_by_zero,
vars: Default::default()
}));
let index_error_signature = primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: exn_cons_args,
ret: index_error,
vars: Default::default()
}));
let top_level_def_list = vec![
Arc::new(RwLock::new(TopLevelComposer::make_top_level_class_def(
0,
None,
"int32".into(),
None,
None,
))),
Arc::new(RwLock::new(TopLevelComposer::make_top_level_class_def(
1,
None,
"int64".into(),
None,
None,
))),
Arc::new(RwLock::new(TopLevelComposer::make_top_level_class_def(
2,
None,
"float".into(),
None,
None,
))),
Arc::new(RwLock::new(TopLevelComposer::make_top_level_class_def(3, None, "bool".into(), None, None))),
Arc::new(RwLock::new(TopLevelComposer::make_top_level_class_def(4, None, "none".into(), None, None))),
Arc::new(RwLock::new(TopLevelComposer::make_top_level_class_def(
5,
None,
"range".into(),
None,
None,
))),
Arc::new(RwLock::new(TopLevelComposer::make_top_level_class_def(6, None, "str".into(), None, None))),
Arc::new(RwLock::new(TopLevelDef::Class {
name: "Exception".into(),
object_id: DefinitionId(7),
type_vars: Default::default(),
fields: exception_fields.clone(),
methods: Default::default(),
ancestors: vec![],
constructor: None,
resolver: None,
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "ZeroDivisionError.__init__".into(),
simple_name: "__init__".into(),
signature: div_by_zero_signature,
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(exn_constructor)))),
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "IndexError.__init__".into(),
simple_name: "__init__".into(),
signature: index_error_signature,
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(exn_constructor)))),
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Class {
name: "ZeroDivisionError".into(),
object_id: DefinitionId(10),
type_vars: Default::default(),
fields: exception_fields.clone(),
methods: vec![("__init__".into(), div_by_zero_signature, DefinitionId(8))],
ancestors: vec![
TypeAnnotation::CustomClass { id: DefinitionId(10), params: Default::default() },
TypeAnnotation::CustomClass { id: DefinitionId(7), params: Default::default() }
],
constructor: Some(div_by_zero_signature),
resolver: None,
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Class {
name: "IndexError".into(),
object_id: DefinitionId(11),
type_vars: Default::default(),
fields: exception_fields,
methods: vec![("__init__".into(), index_error_signature, DefinitionId(9))],
ancestors: vec![
TypeAnnotation::CustomClass { id: DefinitionId(11), params: Default::default() },
TypeAnnotation::CustomClass { id: DefinitionId(7), params: Default::default() }
],
constructor: Some(index_error_signature),
resolver: None,
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "int32".into(),
simple_name: "int32".into(),
signature: primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: vec![FuncArg { name: "n".into(), ty: num_ty.0, default_value: None }],
ret: int32,
vars: var_map.clone(),
})),
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(
|ctx, _, fun, args, generator| {
let int32 = ctx.primitives.int32;
let int64 = ctx.primitives.int64;
let float = ctx.primitives.float;
let boolean = ctx.primitives.bool;
let arg_ty = fun.0.args[0].ty;
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator);
Ok(if ctx.unifier.unioned(arg_ty, boolean) {
Some(
ctx.builder
.build_int_z_extend(
arg.into_int_value(),
ctx.ctx.i32_type(),
"zext",
)
.into(),
)
} else if ctx.unifier.unioned(arg_ty, int32) {
Some(arg)
} else if ctx.unifier.unioned(arg_ty, int64) {
Some(
ctx.builder
.build_int_truncate(
arg.into_int_value(),
ctx.ctx.i32_type(),
"trunc",
)
.into(),
)
} else if ctx.unifier.unioned(arg_ty, float) {
let val = ctx
.builder
.build_float_to_signed_int(
arg.into_float_value(),
ctx.ctx.i32_type(),
"fptosi",
)
.into();
Some(val)
} else {
unreachable!()
})
},
)))),
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "int64".into(),
simple_name: "int64".into(),
signature: primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: vec![FuncArg { name: "n".into(), ty: num_ty.0, default_value: None }],
ret: int64,
vars: var_map.clone(),
})),
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(
|ctx, _, fun, args, generator| {
let int32 = ctx.primitives.int32;
let int64 = ctx.primitives.int64;
let float = ctx.primitives.float;
let boolean = ctx.primitives.bool;
let arg_ty = fun.0.args[0].ty;
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator);
Ok(if ctx.unifier.unioned(arg_ty, boolean)
|| ctx.unifier.unioned(arg_ty, int32)
{
Some(
ctx.builder
.build_int_z_extend(
arg.into_int_value(),
ctx.ctx.i64_type(),
"zext",
)
.into(),
)
} else if ctx.unifier.unioned(arg_ty, int64) {
Some(arg)
} else if ctx.unifier.unioned(arg_ty, float) {
let val = ctx
.builder
.build_float_to_signed_int(
arg.into_float_value(),
ctx.ctx.i64_type(),
"fptosi",
)
.into();
Some(val)
} else {
unreachable!()
})
},
)))),
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "float".into(),
simple_name: "float".into(),
signature: primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: vec![FuncArg { name: "n".into(), ty: num_ty.0, default_value: None }],
ret: float,
vars: var_map.clone(),
})),
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(
|ctx, _, fun, args, generator| {
let int32 = ctx.primitives.int32;
let int64 = ctx.primitives.int64;
let boolean = ctx.primitives.bool;
let float = ctx.primitives.float;
let arg_ty = fun.0.args[0].ty;
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator);
Ok(if ctx.unifier.unioned(arg_ty, boolean)
|| ctx.unifier.unioned(arg_ty, int32)
|| ctx.unifier.unioned(arg_ty, int64)
{
let arg = arg.into_int_value();
let val = ctx
.builder
.build_signed_int_to_float(arg, ctx.ctx.f64_type(), "sitofp")
.into();
Some(val)
} else if ctx.unifier.unioned(arg_ty, float) {
Some(arg)
} else {
unreachable!()
})
},
)))),
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "round".into(),
simple_name: "round".into(),
signature: primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: vec![FuncArg { name: "n".into(), ty: float, default_value: None }],
ret: int32,
vars: Default::default(),
})),
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(|ctx, _, _, args, generator| {
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator);
let round_intrinsic =
ctx.module.get_function("llvm.round.f64").unwrap_or_else(|| {
let float = ctx.ctx.f64_type();
let fn_type = float.fn_type(&[float.into()], false);
ctx.module.add_function("llvm.round.f64", fn_type, None)
});
let val = ctx
.builder
.build_call(round_intrinsic, &[arg.into()], "round")
.try_as_basic_value()
.left()
.unwrap();
Ok(Some(
ctx.builder
.build_float_to_signed_int(
val.into_float_value(),
ctx.ctx.i32_type(),
"fptosi",
)
.into(),
))
})))),
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "round64".into(),
simple_name: "round64".into(),
signature: primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: vec![FuncArg { name: "n".into(), ty: float, default_value: None }],
ret: int64,
vars: Default::default(),
})),
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(|ctx, _, _, args, generator| {
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator);
let round_intrinsic =
ctx.module.get_function("llvm.round.f64").unwrap_or_else(|| {
let float = ctx.ctx.f64_type();
let fn_type = float.fn_type(&[float.into()], false);
ctx.module.add_function("llvm.round.f64", fn_type, None)
});
let val = ctx
.builder
.build_call(round_intrinsic, &[arg.into()], "round")
.try_as_basic_value()
.left()
.unwrap();
Ok(Some(
ctx.builder
.build_float_to_signed_int(
val.into_float_value(),
ctx.ctx.i64_type(),
"fptosi",
)
.into(),
))
})))),
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "range".into(),
simple_name: "range".into(),
signature: primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: vec![
FuncArg { name: "start".into(), ty: int32, default_value: None },
FuncArg {
name: "stop".into(),
ty: int32,
// placeholder
default_value: Some(SymbolValue::I32(0)),
},
FuncArg {
name: "step".into(),
ty: int32,
default_value: Some(SymbolValue::I32(1)),
},
],
ret: range,
vars: Default::default(),
})),
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(|ctx, _, _, args, generator| {
let mut start = None;
let mut stop = None;
let mut step = None;
let int32 = ctx.ctx.i32_type();
let zero = int32.const_zero();
for (i, arg) in args.iter().enumerate() {
if arg.0 == Some("start".into()) {
start = Some(arg.1.clone().to_basic_value_enum(ctx, generator));
} else if arg.0 == Some("stop".into()) {
stop = Some(arg.1.clone().to_basic_value_enum(ctx, generator));
} else if arg.0 == Some("step".into()) {
step = Some(arg.1.clone().to_basic_value_enum(ctx, generator));
} else if i == 0 {
start = Some(arg.1.clone().to_basic_value_enum(ctx, generator));
} else if i == 1 {
stop = Some(arg.1.clone().to_basic_value_enum(ctx, generator));
} else if i == 2 {
step = Some(arg.1.clone().to_basic_value_enum(ctx, generator));
}
}
// TODO: error when step == 0
let step = step.unwrap_or_else(|| int32.const_int(1, false).into());
let stop = stop.unwrap_or_else(|| {
let v = start.unwrap();
start = None;
v
});
let start = start.unwrap_or_else(|| int32.const_zero().into());
let ty = int32.array_type(3);
let ptr = ctx.builder.build_alloca(ty, "range");
unsafe {
let a = ctx.builder.build_in_bounds_gep(ptr, &[zero, zero], "start");
let b = ctx.builder.build_in_bounds_gep(
ptr,
&[zero, int32.const_int(1, false)],
"end",
);
let c = ctx.builder.build_in_bounds_gep(
ptr,
&[zero, int32.const_int(2, false)],
"step",
);
ctx.builder.build_store(a, start);
ctx.builder.build_store(b, stop);
ctx.builder.build_store(c, step);
}
Ok(Some(ptr.into()))
})))),
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "str".into(),
simple_name: "str".into(),
signature: primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: vec![FuncArg { name: "s".into(), ty: string, default_value: None }],
ret: string,
vars: Default::default(),
})),
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(|ctx, _, _, args, generator| {
Ok(Some(args[0].1.clone().to_basic_value_enum(ctx, generator)))
})))),
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "bool".into(),
simple_name: "bool".into(),
signature: primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: vec![FuncArg { name: "n".into(), ty: num_ty.0, default_value: None }],
ret: primitives.0.bool,
vars: var_map,
})),
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(
|ctx, _, fun, args, generator| {
let int32 = ctx.primitives.int32;
let int64 = ctx.primitives.int64;
let float = ctx.primitives.float;
let boolean = ctx.primitives.bool;
let arg_ty = fun.0.args[0].ty;
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator);
Ok(if ctx.unifier.unioned(arg_ty, boolean) {
Some(arg)
} else if ctx.unifier.unioned(arg_ty, int32) {
Some(ctx.builder.build_int_compare(
IntPredicate::NE,
ctx.ctx.i32_type().const_zero(),
arg.into_int_value(),
"bool",
).into())
} else if ctx.unifier.unioned(arg_ty, int64) {
Some(ctx.builder.build_int_compare(
IntPredicate::NE,
ctx.ctx.i64_type().const_zero(),
arg.into_int_value(),
"bool",
).into())
} else if ctx.unifier.unioned(arg_ty, float) {
let val = ctx.builder.
build_float_compare(
// UEQ as bool(nan) is True
FloatPredicate::UEQ,
arg.into_float_value(),
ctx.ctx.f64_type().const_zero(),
"bool"
).into();
Some(val)
} else {
unreachable!()
})
},
)))),
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "floor".into(),
simple_name: "floor".into(),
signature: primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: vec![FuncArg { name: "n".into(), ty: float, default_value: None }],
ret: int32,
vars: Default::default(),
})),
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(|ctx, _, _, args, generator| {
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator);
let floor_intrinsic =
ctx.module.get_function("llvm.floor.f64").unwrap_or_else(|| {
let float = ctx.ctx.f64_type();
let fn_type = float.fn_type(&[float.into()], false);
ctx.module.add_function("llvm.floor.f64", fn_type, None)
});
let val = ctx
.builder
.build_call(floor_intrinsic, &[arg.into()], "floor")
.try_as_basic_value()
.left()
.unwrap();
Ok(Some(
ctx.builder
.build_float_to_signed_int(
val.into_float_value(),
ctx.ctx.i32_type(),
"fptosi",
)
.into(),
))
})))),
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "floor64".into(),
simple_name: "floor64".into(),
signature: primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: vec![FuncArg { name: "n".into(), ty: float, default_value: None }],
ret: int64,
vars: Default::default(),
})),
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(|ctx, _, _, args, generator| {
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator);
let floor_intrinsic =
ctx.module.get_function("llvm.floor.f64").unwrap_or_else(|| {
let float = ctx.ctx.f64_type();
let fn_type = float.fn_type(&[float.into()], false);
ctx.module.add_function("llvm.floor.f64", fn_type, None)
});
let val = ctx
.builder
.build_call(floor_intrinsic, &[arg.into()], "floor")
.try_as_basic_value()
.left()
.unwrap();
Ok(Some(
ctx.builder
.build_float_to_signed_int(
val.into_float_value(),
ctx.ctx.i64_type(),
"fptosi",
)
.into(),
))
})))),
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "ceil".into(),
simple_name: "ceil".into(),
signature: primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: vec![FuncArg { name: "n".into(), ty: float, default_value: None }],
ret: int32,
vars: Default::default(),
})),
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(|ctx, _, _, args, generator| {
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator);
let ceil_intrinsic =
ctx.module.get_function("llvm.ceil.f64").unwrap_or_else(|| {
let float = ctx.ctx.f64_type();
let fn_type = float.fn_type(&[float.into()], false);
ctx.module.add_function("llvm.ceil.f64", fn_type, None)
});
let val = ctx
.builder
.build_call(ceil_intrinsic, &[arg.into()], "ceil")
.try_as_basic_value()
.left()
.unwrap();
Ok(Some(
ctx.builder
.build_float_to_signed_int(
val.into_float_value(),
ctx.ctx.i32_type(),
"fptosi",
)
.into(),
))
})))),
loc: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "ceil64".into(),
simple_name: "ceil64".into(),
signature: primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: vec![FuncArg { name: "n".into(), ty: float, default_value: None }],
ret: int64,
vars: Default::default(),
})),
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(|ctx, _, _, args, generator| {
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator);
let ceil_intrinsic =
ctx.module.get_function("llvm.ceil.f64").unwrap_or_else(|| {
let float = ctx.ctx.f64_type();
let fn_type = float.fn_type(&[float.into()], false);
ctx.module.add_function("llvm.ceil.f64", fn_type, None)
});
let val = ctx
.builder
.build_call(ceil_intrinsic, &[arg.into()], "ceil")
.try_as_basic_value()
.left()
.unwrap();
Ok(Some(
ctx.builder
.build_float_to_signed_int(
val.into_float_value(),
ctx.ctx.i64_type(),
"fptosi",
)
.into(),
))
})))),
loc: None,
})),
Arc::new(RwLock::new({
let list_var = primitives.1.get_fresh_var(Some("L".into()), None);
let list = primitives.1.add_ty(TypeEnum::TList { ty: list_var.0 });
let arg_ty = primitives.1.get_fresh_var_with_range(&[list, primitives.0.range], Some("I".into()), None);
TopLevelDef::Function {
name: "len".into(),
simple_name: "len".into(),
signature: primitives.1.add_ty(TypeEnum::TFunc(FunSignature {
args: vec![FuncArg {
name: "ls".into(),
ty: arg_ty.0,
default_value: None
}],
ret: int32,
vars: vec![(list_var.1, list_var.0), (arg_ty.1, arg_ty.0)].into_iter().collect(),
})),
var_id: vec![arg_ty.1],
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(
|ctx, _, fun, args, generator| {
let range_ty = ctx.primitives.range;
let arg_ty = fun.0.args[0].ty;
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator);
Ok(if ctx.unifier.unioned(arg_ty, range_ty) {
let arg = arg.into_pointer_value();
let (start, end, step) = destructure_range(ctx, arg);
Some(calculate_len_for_slice_range(ctx, start, end, step).into())
} else {
let int32 = ctx.ctx.i32_type();
let zero = int32.const_zero();
let len = ctx.build_gep_and_load(arg.into_pointer_value(), &[zero, int32.const_int(1, false)]).into_int_value();
if len.get_type().get_bit_width() != 32 {
Some(ctx.builder.build_int_truncate(len, int32, "len2i32").into())
} else {
Some(len.into())
}
})
},
)))),
loc: None,
}
}))
];
let ast_list: Vec<Option<ast::Stmt<()>>> =
(0..top_level_def_list.len()).map(|_| None).collect();
(
izip!(top_level_def_list, ast_list).collect_vec(),
&[
"ZeroDivisionError",
"IndexError",
"int32",
"int64",
"float",
"round",
"round64",
"range",
"str",
"bool",
"floor",
"floor64",
"ceil",
"ceil64",
"len",
]
)
}